Shuai DIAO, Lina HU, Hongtao ZHU, et al. Role of E3 ubiquitin ligase MARCH5 in proliferation, invasion and migration of cervical cancer cells[J]. Journal of Third Military Medical University, 2018, 40(22): 2053-2060.
DOI:
Shuai DIAO, Lina HU, Hongtao ZHU, et al. Role of E3 ubiquitin ligase MARCH5 in proliferation, invasion and migration of cervical cancer cells[J]. Journal of Third Military Medical University, 2018, 40(22): 2053-2060. DOI: 10.16016/j.1000-5404.201806028.
Role of E3 ubiquitin ligase MARCH5 in proliferation, invasion and migration of cervical cancer cells
To study the expression of membrane-associated RING-CH 5 (MARCH5)
an E3 ubiquitin ligase
in cervical cancer and investigate its role in the proliferation
invasion and migration of cervical cancer cells
in vitro
.
Methods
2
Immunohistochemistry was used to detect the expression of MARCH5 in clinical specimens of cervical cancer tissues. The cervical cancer cell line HeLa with MARCH5 silencing was examined for changes in proliferation
invasion
and migration abilities using EdU assay
Transwell assay
and scratch wound healing assay
and Western blotting was used to detect the expression of Drp1
Bax
MARCH5
and PGAM in the cells. Immunofluorescence assay with MitoTracker labeling was employed to characterize the colocalization of MARCH5 with the mitochondria.
Results
2
Cervical cancer tissues expressed high levels of MARCH5 compared with the normal cervical tissues
and the expression level was correlated with the tumor grade (
P
<
0.01) but not with the patients' age or tumor stage (
P
>
0.05). Silencing MARCH5 in HeLa cells resulted in significant suppression of the cell proliferation
invasion
and migration (
P
<
0.05)
and significantly down-regulated Drp1 expression and up-regulated PGAM5 and Bax expression (
P
<
0.05).
Conclusion
2
MARCH5
which is up-regulated in cervical cancer
can serve as a candidate oncogene for cervical cancer and also a potential target for cervical cancer treatment.
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